Steam boiler



Julyzz, 192e. f 1,593,600

J. F. ROSS STEAM BOILER Filed March 51. 1923 I5 Sheets-Sheet 2 l u u Il July 27,1926; 1,593,600

J. F. ROSS STEAM BOILER Filed March 51, A1923 s sheets-sheet P Patented July 27, 1926.

UNITED STATES JOSEPH F. ROSS, F CHICAGO, LLNOXS.

STEAM norma. l l

Application filed vMarch 31, 1923. Y Serial No. 629,014.

This invention relates to a boiler of that type designed to furnish steam.

It is an object of this invention to provide an exceedingly economical and cheap construction with an accompanying large radiating surface or area.

Viith these and other objects in view, which will become more apparent in the following descriptionand disclosures, this invention comprises the novel structure and combinations hereinafter described and more particularly pointed out and 'defined in the appended claim.

In the accompanying drawings, which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar features in the different views:

Figure 1 is a front elevational'view of the boiler.

Figure 2 is a top plan View thereof.`

Figure 3 is an enlarged section upon the line 3-3 of Figure 1.

Figure 4 is an enlarged section upon the l line 4-4 of Figure 3.

Figure 5 is an enlarged section upon the line 5-5 0f Figure 3.

Figure 6 is an enlarged section upon the line 6-6-of Figure 3.

In referring now to the different figures of the drawings, it will be observed that the lateral sides and top of the boiler are formed by a single sheet metal plate member 1 which is stamped into substantially a U shaped form. Within the metal plate member 1, there is another stamped sheet metal i form 2 having lower parallel sides which are spaced from the sides of the member 1 to define a fluid partition or chamber therebetween. Above the fire box, these parallel sides merge into short horizontal portions 2a which in turn merge into a U-shaped portion 2b which constitutes part of the flue. The lower ends of the parallel sides of the P member 2 are provided with horizontal fianges 2c that extend to the sides of the outer member 1 to which theyl are welded, and they rest upon ledges 3 integral with the side base member 4. Spacing bolts 5 hold the members 1 and 2 in rigid relation and add strength to the structure. v

The rear end of the outer metal form l is closed by an end plate 6 (Figure 3) and the rear end of the inner metal form 2 is closed by a metal plate 7 welded thereto which is suitably spaced from the plate 6 to define a fluid partition' or chamber therebetween; the lower end beingl provided with a horizontal flange S that is preferably welded to the bottom of the plates ,6 vandv rests upon a ledge 9 of the rear base member 10. The lower por tion of the plates 6 and 7 are preferably connected by the spacing bolts 5to maintain the same in rigid spaced relation.` rlhe upper ends of the plates 6 and 7 are respectively welded'to `the outer and inner forms 1 and 2. 'A cylindrical exhaust box 11a is welded to the upperl rear end of the outer form 1 from whichl the'smoke or exhaust pipe l2 extends.

In referring to Figure 1, it will be observed that the space between the upper half of the outer metal form l an'd the upper part 2 of the metal form 2 is in the form of'a horse shoe which is Closed at the front by a plate member 11 which is welded between said members 1 and 2 and the whole front upper part is closed byv a metal boxslike structure 12 forming a box, the same being` welded to the outer member 1 and lraving a door 13 for inspection of the flue. Metal strips, such as 14; or the angle irons 15, may be used as welded' splices at the joints to produce a rigid construction.

The. front end o-f the fire box is formed by a door 16 surrounded by a iiuid chamber. This fluid chamber is formed by welding a metal plate 17 to the front endsl of the inner member 2 along the lateralr margins thereof as shown in Figure 6 and providing said plate with an opening corresponding to the door and Awith outwardly extendingr flanges 17a and 17" which respectively form the sides, top and bottom of the doorway. The lower margin of the plate 17 is provided with a right-angled flange 18 welded to the ledge of the front base member and the upper margin of said plate is provided with a Similar flange 18 that extends outwardly and is welded to the plate member 11 as shown in Figure 3. A plate member 19 having an aperture corresponding to the opening formed by the fianges 17a and 17b loo and comprising an extension of the plate 11,

if desired, is welded at its lateral edges to the outer member l as shown in Figure 6 and is also welded at its upper and lower edges to the outer margins of flanges 18 of the inner plate 1'?. Likewise, the border of the opening in the plate member 19 is welded to the flanges 17a and 17b of the in- .ner member 2, and spacing bolts 5 may exu tend through the plates 1 7 and 19 for strengtheningthe structure. The' plates 17 and 19l aresuliciently spaced to provide a fluid chamber therebetween.

A series or" fluid pipes Q0 are supported` by the plate members 7 and 17 and, com municate With the front and rear parts of the fluid chamber or partitionthat surrounds the fire boX. The fluidis not only intended t0 filll the partities. argued .the rebox, but it? alsointended to. egtend sut'tieiently aboi the "ibOXfftO .Surround the; flue 2b and l the .dillerent series of flue pipes 21 which are supported lthe horse shoeplate 11`a1idthe'fplate 6 ask shown in Figure 5. BoltsQQ preferably extendbet'weenthe outerl'orm 1 and the flue 2bt'orvadding strength tothe structure.

In referring to Figure l, it will be noted that theliue 2" is open atitslower end and communicates-direetly with the lirejbox It is, however, closed. b y -abatliefornied ofiiire brick exceptV for as hqrtspace 24 (Figure 3),V at the rear.

.It therefore be necessary for the llamesv to passtotlierear ofthe fire box, thenv 'through the opening 24, and through the tine 2b. and intothellue 1-2"L froinwliich theyniay esapethrqugh, the flue tubes 21 into the rear Hue bonll. The steam may beiled volf tlniough they pipe 25, Itwill therefore be evidentvthat the fluid is subjected to a largejheating area through thebackward and forward movement ot the liames orheat- Proper plugs such as 26, whereby the luid pipesandgehainbermay be inspected and cleaned, maybe provided. i In lthe' present exempliication of. tliisinvention, the grate 27 `is suitably ysupported at the .base vof the tire box and the base members lmay form the usual ash compartment.

VIt is characterisuic of the, boiler constructed according tothis invent-ion that `the dit'- ferent parts c an be readily stamped from suitable sheet metal and can be quickly as- Slnbled by welding, whereby the labor and cost is greatly reduced.

It should also be noted that the portion 2b'is extended outwardly and is welded to the plate 11, the bottom of said projecting portion being close-d by the flange 18 which is welded to the plate 19. This construction allor-ds a water space above the [ire box having' tire tubes extendiinry therethrough` 4 and at the same time. the shape ot said niember, allows it to form the upper part of the combustion chamber. It' desired, the innerform 2 maybe made in sections secured together by welding at suitable points.

I am aware that numerous details oi construction may be varied through a wide range withoutv -flepartingY from the principles ofthis invention, and Iv therefore do not purpose limiting the patent granted. otherdisposed. in a horizontal row in the .top of said lire box Aand' communicatingT with said fluid chamber at front and rear, a baffle supportedby said fluid pipes between said tire boX and flue chamber and permitting communication therebetween at the rear only, flue pipes supported by the outer shell and positioned betweenthe reduced flue chamber and the sides of the outer shell, a tine box secured tothe outer shell vand establishing communication between said fluechamber and said flue pipes, and an exhaust box at the rear into ywhich said flue pipes discharge.

,In testimony whereof I have hereunto subscribed my name.

JOSEPH F. ROSS.

Sli 

